<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
       {{msg}}
       <div v-text="msg"></div>
       <div v-html="msg"></div>
    </div>
    <script src="./vue.js"></script>
    <script>
        let vm = new Vue({
            el:"#app",
            data:{
               msg:"<h1>12121</h1>"
            }
           
        })

      
    </script>
</body>
</html>